Fig. 3.
Growth rate of NDV strains rBC, rLaSota, and LaSota V.F. in the brain of 1-day-old chicks inoculated intracerebrally with 103 PFU of virus. Brains from live birds were collected daily, homogenized and plaque assayed for virus content.
Growth rate of NDV strains rBC, rLaSota, and LaSota V.F. in the brain of 1-day-old chicks inoculated intracerebrally with 103 PFU of virus. Brains from live birds were collected daily, homogenized and plaque assayed for virus content.